输油管道土壤温度场变化的影响因素分析

On Factors Affecting the Change of Soil Temperature Field around Oil Conveying Pipelines

水分迁移和冻融过程是影响输油管道土壤温度场变化的两个主要因素,水分迁移、冻融过程中的热量传输与相变过程相互作用、相互影响。在进行埋地管道周围土壤温度场数值分析时,不仅要考虑轴向温度变化,还应考虑埋地输油管道温度场受水分场、应力场和盐分场等多场共同作用及周围边界的影响。

Water translocation and facies change in freeze- thaw process have great influence on soil temperature field around oil conveying pipelines. It has important effect on the change of operational parameters. It is significant for the construction and operation of pipelines to predict the change of the soil temperature field around the oil conveying pipeline correctly. When measuring soil temperature field, both axial temperature change and influence on oil conveying pipelines of water field, stress field and salt field should be taken into consideration.